Wellhead connection



Oct. 19, 1937. A. J. PENICK ET AL WELLHEAD CONNECTION y original Filed may 25, 1951 Patented oct. 19,1937

UNITED STATES PATENT OFFICE 2,096,350 Y WELLHEAD CONNECTION Arthur J. Penick and Houston,

539,841. cember 18, 1933,

Kirby T. Penick, Tex.

Serial No.

2 claims. (c1. 16s-14) This invention relates to a well head connection.

The subject matter ofcthis invention has been divided out from our Patent 2,016,454 of October 8, 1935.

An object of the invention is to provide a well head having a Christmas tree or other similar pipe connection mounted to swivel thereon about y embodying the invention and shown partly in' stituting no part an approximately vertical axis so that the Christmas tree or other connection may be adjusted and Asecured in any desired position.

Another objectl of the invention is to provide, in a well head connection', novel means :for supporting the tubing in the well. l

With the above and other objects in View, this invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specication and illustrated in the accompanying drawing wherein.

The figure shows a side elevation of a well head section. v Referring more particularly to the drawing the numeral I designates a pipe or casing in a well bore. Attached to the upper end of said pipe preferably by means of acoupllng 2, there is a main tubular body 3, connected to the upper end of which there is a slip bowl 4 whose upper end supports a gate valve 6 which is attached to the-upper end thereof. The slip bowl 4 has an internal downwardly converging seat 'l in which may be located the downwardly tapering slips 8 forming a tubing hanger and the inner faces of these slips may be provided with tubing engaging teeth 9 adapted to engage #around the tubing I to be supported by the slips 8.

There is a gland composed of upper and lower .annular plates II, I2 tween them, said gland being located above the slips 8 and fitting closely around the tubing. A ring nut I4 may be threaded into the upper end of the bowl 4 against the upper plate I I to secure the gland and slips in place and to expand'the ksupporting the tubing, the supporting means conof the present invention.

Upon the swivel adapter 6 there is a top outlet union I5 whose lower end is enlarged at I 6 and on said enlarged portion there is an annular loose flange I'I whichis retainedin place by set bolts 5 having the swivel adapter l by the appended with a packing ring I3 be- I8. The set bolts extend through said ring and are screwed into the adapter 6 and their upper ends are provided with heads I9 which engage the flange I'I.

The lower end of the union I5 and the upper end of the adapter 6 have the facing annular grooves 20 and 2l in which is seated a suitable sealing ring 22, to form tight joints in said grooves.

A suitable connection such as a Christmas tree 23, having the lateral branches 24, 24 and the upstanding branch 25, may be connected to the union I5 said branches being equipped with suitable control valves 26. Any other type of connection than that shown may be connected to the union I5.

In case it be desired to adjust said Christmas tree or other connection about bolts I8 The drawing and description disclose what is now considered to be a preferred form of the invention by way of illustration only while broad' principle of the invention will be dened claims.

What we claim is:

1. The combination with a tubular head adapted to be attached to the casing in a well bore, of a cylindrical slip bowl thereon having a downwardly converging seat therein, and an. enlarged counterbore above the seat and whose upper end is reduced and outwardly threaded, slips shaped to fit into said seat and to surround and engage a tubing through said bowl and extended up into the counterbore, a gland in the counterbore suplarged internally threaded counterbore `at its v lower end to receive the head and an enlarged nut threaded into plates with packing between the plates, said gland tting closely around the tubing and a ring nut threaded -into the upper end of the counterbore at the upper end of the bowl against the upper plate to secure the gland and slips in 5 place.

. ARTHUR .L PENICK. KmBY T. PEN'ICK. 

